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H Hartley Sweeten ceb41be712 staging: comedi: pcl816: fix short DMA transactions 
When the cmd->stop_src == TRIG_COUNT the last DMA transfer might be smaller
than the buffer size. This results in invalid data being added to the async
buffer.

Add a 'size' member to the DMA descriptor and initialize it with the
actual size of the DMA transfer. Use that in interrupt and ai subdevice
(*poll) function to return the proper number of samples. Use the
comedi_bytes_to_samples() helper to convert the byte size to comedi
samples in the interrupt handler.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-17 14:25:21 -08:00
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accessibility
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acpi
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2014-12-19 14:02:02 -08:00
amba
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2014-12-14 16:43:47 -08:00
android
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ata
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2014-12-18 20:28:33 -08:00
atm
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2014-12-14 16:10:09 -08:00
auxdisplay
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base
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2014-12-18 20:28:33 -08:00
bcma
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2014-12-11 17:56:37 -08:00
block
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2014-12-17 16:03:12 -08:00
bluetooth
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bus
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2014-12-14 16:10:09 -08:00
cdrom
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char
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2014-12-25 16:04:15 -08:00
clk
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2014-12-20 16:42:36 -08:00
clocksource
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2014-12-11 17:56:37 -08:00
connector
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coresight
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cpufreq
Update/Remove soon-to-be-dead email address
2014-12-19 12:56:15 -08:00
cpuidle
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2014-12-19 12:57:45 -08:00
crypto
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2014-12-14 16:10:09 -08:00
dca
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devfreq
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dio
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dma
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2014-12-14 16:10:09 -08:00
dma-buf
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edac
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eisa
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extcon
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2014-12-14 16:43:47 -08:00
firewire
firewire: sbp2: replace card lock by target lock
2014-12-10 20:53:21 +01:00
firmware
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2014-12-14 16:10:09 -08:00
fmc
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gpio
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
gpu
Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"
2014-12-24 13:13:22 +10:00
hid
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2014-12-12 10:26:47 -08:00
hsi
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2014-12-15 17:33:47 -08:00
hv
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2014-12-14 16:43:47 -08:00
hwmon
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2014-12-17 10:16:27 -08:00
hwspinlock
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i2c
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2014-12-20 13:52:52 -08:00
ide
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2014-12-14 16:10:09 -08:00
idle
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iio
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2014-12-15 18:06:13 -08:00
infiniband
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2014-12-20 13:42:57 -08:00
input
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2014-12-17 10:06:02 -08:00
iommu
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2014-12-19 14:02:02 -08:00
ipack
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irqchip
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2014-12-15 17:30:09 -08:00
isdn
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leds
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2014-12-18 20:28:33 -08:00
lguest
virtio: allow finalize_features to fail
2014-12-09 16:32:32 +02:00
macintosh
macintosh: therm_pm72: delete deprecated driver
2014-12-19 19:32:47 +01:00
mailbox
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2014-12-14 16:10:09 -08:00
mcb
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md
dm: fix missed error code if .end_io isn't implemented by target_type
2014-12-17 12:31:13 -05:00
media
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2014-12-18 20:28:33 -08:00
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memstick
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message
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mmc
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nfc
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ntb
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of
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2014-12-16 14:53:01 -08:00
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parport
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pcmcia
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2014-12-14 16:43:47 -08:00
phy
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2014-12-18 20:28:33 -08:00
pinctrl
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pnp
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power
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powercap
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pps
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ps3
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pwm
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rapidio
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ras
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regulator
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remoteproc
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reset
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rpmsg
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rtc
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s390
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sbus
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scsi
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2014-12-20 13:42:57 -08:00
sfi
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sh
drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-05 03:08:24 +01:00
sn
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soc
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2014-12-15 15:52:01 -08:00
spi
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-19 15:25:31 +01:00
spmi
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ssb
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2014-12-11 17:56:37 -08:00
staging
staging: comedi: pcl816: fix short DMA transactions
2015-01-17 14:25:21 -08:00
target
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tc
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thermal
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2014-12-19 13:29:20 -08:00
thunderbolt
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tty
tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-19 15:27:58 +01:00
uio
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2014-12-14 16:43:47 -08:00
usb
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uwb
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video
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virt
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vme
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w1
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2014-12-14 16:43:47 -08:00
watchdog
watchdog: imx2_wdt: Fix the argument of watchdog_active()
2014-12-18 16:01:20 +01:00
xen
Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus
2014-12-18 05:56:29 -08:00
zorro
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Kconfig
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2014-12-15 18:06:13 -08:00
Makefile
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2014-12-15 18:06:13 -08:00